Question

Помогите пожалуйста Компьютерная игра состоит из трёх этапов. Костя набрал на первых двух этапах 780 очков, на третьем-в 3 раза меньше, чем на первом. Сколько всего очков набрал Костя, если на втором этапе он набрал на 240 очков больше, чем на первом?

Answer 1

Ответ:

В первом получилось 540 в третьем 180

Пошаговое объяснение:

1) 780-240=540

2) 540:3=180

Answer 2

Ответ:

Ответ на фотографии.

Answer 3

Problem Analysis

We are given that a computer game consists of three stages. On the first two stages, Kostya scored a total of 780 points, and on the third stage, he scored three times fewer points than on the first stage. We are also told that on the second stage, Kostya scored 240 points more than on the first stage. We need to find the total number of points Kostya scored.

Solution

Let's break down the problem step by step:

1. Let's assume the number of points Kostya scored on the first stage is x. 2. On the second stage, Kostya scored 240 points more than on the first stage, so his score on the second stage is x + 240. 3. On the third stage, Kostya scored three times fewer points than on the first stage, so his score on the third stage is x / 3. 4. The total number of points Kostya scored is the sum of his scores on all three stages: x + (x + 240) + (x / 3) = 780.

Now, let's solve the equation to find the value of x:

x + (x + 240) + (x / 3) = 780

Combining like terms:

3x + 3(x + 240) + x = 2340

Simplifying:

3x + 3x + 720 + x = 2340

7x + 720 = 2340

Subtracting 720 from both sides:

7x = 1620

Dividing both sides by 7:

x = 1620 / 7

Evaluating the expression:

x ≈ 231.43

Since the number of points must be a whole number, we can round x to the nearest whole number:

x ≈ 231

Therefore, Kostya scored approximately 231 points on the first stage.

To find the total number of points Kostya scored, we substitute the value of x into the equation:

Total points = x + (x + 240) + (x / 3)

Total points = 231 + (231 + 240) + (231 / 3)

Calculating the expression:

Total points ≈ 231 + 471 + 77

Total points ≈ 779

Therefore, Kostya scored approximately 779 points in total.

Answer

Kostya scored approximately 231 points on the first stage, and his total score for all three stages is approximately 779 points.